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11/29/2023
WT Staff
HAPPENING NOW
Deliberate sewage discharge impacting state waters
BWAs for Hayes, Southwest Allen Parish
Wednesday, November 29, 2023 - last updated 3:23 pm CST
Hazardous Spills emergency and non-emergency incidents reported to Louisiana Department of Environmental Quality
The US Coast Guard, Main Pass Oil Gathering Company, LLC and the Louisiana Oil Spill Coordinator's Office have established a Unified Command in response to a crude oil release in the Gulf of Mexico near the Main Pass Oil Gathering (MPOG) company's pipeline system close to Plaquemines Parish, southeast of New Orleans. An estimated 1.1 million gallons of crude oil discharged into the Gulf of Mexico on or around November 17.
The Unified Command coordinates the efforts of "federal, state and local agencies to ensure the safety of the public, protection of the environment and response to the incident. The Coast Guard continues to oversee coordinated efforts to mitigate impacts from the spill."
The latest news from Unified Command press briefing Nov 28, "The Unified Command continues to monitor and respond to an oil discharge near the Main Pass Oil Gathering (MPOG) company's pipeline system, known as the MPOG 11015 incident, near Plaquemines Parish, southeast of New Orleans. The cause and source of the incident remain under investigation. Overflights conducted November 20 to date have observed no new oil from the suspected release. Recent wildlife and shoreline assessments identified no wildlife or shoreline impacts. Remotely operated vehicles (ROVs) and divers are continuing to survey multiple pipelines in the area. More than 39.5 miles of the main pipeline have been inspected, with no damages or indications of a leak identified. ROVs have also inspected more than 6 miles of surrounding pipelines, also with no damages or indications of a leak identified.
The next scheduled news release will be issued Tuesday, December 5. More to follow.
A deliberate discharge of raw sewage is reported impacting Manchac Plantation Lake off Old Perkins Rd in Prairieville - Ascension Parish, watershed Region 5.
Boil Water Advisories:
Jeff Davis Water Commission 1 has issued a BWA for the community of Hayes due to a break in the 3-inch water main. Customers connecting in Hayes must boil water intended for consumption until further notice.
Southwest Allen Parish Water District II has issued a boil advisory following a water main repair yesterday. Water customers connecting along Hwy 383 from Amos Bluff in Indian Village to Hecker should be boiling all drinking water until further notice.
Monterey residents remain on BWA after a water service disruption on the weekend.
Refer to yellow tags on the map for more BWAs in effect in the state of Louisiana. Also see the latest EPA Safe Drinking Water Act list of Serious Violators under the SDWA button to the right of the map.
Drought Situation from USGS 7-day average streamflows
Tensas River channel and east to the Mississippi River in Region 3 have slipped back into severe drought status Wednesday.
A new area rated with drought this morning is in northeast state watershed Region 3, taking up Union and west Morehouse Parish with the below normal status. New on the map yesterday, the south portion of Region 3 remains below normal, including Concordia Parish, south Catahoula and north Avoyelles Parishes. Saline Bayou channel in Watershed Region 1 remains in severe drought mode with the adjacent area of Region 2 below normal again today, that's Jackson, Winn and Caldwell Parishes.
Moving south, the east side of Region 5 watershed area remains with the moderate drought rating from top to bottom at the Gulf Coast. To the west, Regions 4 and the remaining parts of 5 are below normal, no part of the southwest escapes the drought map today. To the east, Tangipahoa River channel through Tangipahoa County sticks at the severe rating with all surrounding area in the southeast being normal, no drought rating.
As of Wednesday morning, the same three USGS streamflow gages are still recording low flows. Tangipahoa River is flowing low at Robert, Tensas River is low again at Tendal, Saline Bayou is flowing low near Lucky in watershed Region 1.
WaterToday reports day-to-day changes recorded by USGS streamflow monitors on rivers and tributaries located in Louisiana, along with monitors upstream in the Mississippi River basin: Ohio, Georgia and southwest New York state. USGS creates a drought map from 7-day average streamflow readings, by comparing the average with the historic weekly normal flow value for each location. The drought ratings are below normal, moderate hydrologic drought, severe drought and extreme drought.
HABs Report from National Centers for Coastal Ocean Science (NCCOS) satellite monitoring program
A new image captured Tuesday, November 28 provides an unobstructed view of southeast Louisiana water bodies. Lake Pontchartrain, Lake Verret and Lac des Allemands HABs are plainly visible. Lac des Allemands and Bayou Fortier show lakewide HAB activity at the high concentration of 800 thousand cells per 100 ml. Lake Verret and Lake Palourde HABs appear in technicolor, Lake Verret unchanged from yesterday with a high concentration HAB filling the lake from shore to shore 900 thousand to 1 million cells per 100 ml. The north shoreline is the one place that appears clear of HAB in the latest image. Lake Palourde to teh south is visible today, the HAB there is also lakewide and 800 thousand cells per 100 ml.
Lake Pontchartrain widespread HAB in open water in the northeast quarter has shifted west today, appearing as very small localized blooms dispersed over the northwest quarter of the water body at 100 thousand cells per 100 ml.
Lac des Allemands HAB extends down a channel connecting to Lake Salvador to the southeast. The HAB in the channel and Lake Salvador appears to decline in concentration, starting at 800 thousand in Lac des Allemands and calming down to 100 to 200 thousand cells per 100 ml at the west shore of Lake Salvador.
Bluegreen location tags on our map give the interpretation of the last clear image available.
Note about hazardous spill incident reporting, from LDEQ: Information contained in the Field Interview form is the preliminary observation of the inspector. This should not be construed as a final determination of LDEQ, its officers or personnel as to any matter, including compliance or non-compliance with statutes, regulations and permits.
Each day of non-compliance is considered a separate violation of the Louisiana Environmental Quality Act.
See the pink tags on the map with the watershed layer turned on, showing the potential impact zone of hazardous spills in the environment. Refer to the Spills button on the right of the map for more incident reports filed this year.
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